Skip to main content
Stesso

Header Fitment and Fabrication Details

12:48
23:05
50.6K views

At 12:48 in

Unboxing LSXcalade's NEW Twin Turbo LSX 427! (Ready For 2,000+ HP)

Watch on YouTube

What happens here

The custom headers are test-fitted onto the engine block. The presenter notes the challenges of creating these headers to fit around the engine's unique geometry, including custom valve covers and the asymmetrical engine placement in the Escalade chassis. It's explained that the passenger side header was tighter due to the drivetrain components. The primary tubes are the first metal fabrication the presenter ever did, highlighting improvement in welding skills since then. It is noted that the original header bolts from the stock engine will be reused for consistency and a bigger head.

Goal: Confirm fitment of the custom headers and discuss fabrication challenges.

Tools and materials

  • Anti-Seize Compound — Lubricating header bolts to prevent seizing
  • Custom Headers — Being installed onto the engine block
  • LS7 Engine Block Late Model Engines — The base for test-fitting the headers
  • Stock Header Bolts GM — Securing the headers to the engine block

What they say

Hide

open up this other header we're gonna do a whole mock up here just because it looks like it'll be just fine yeah it might actually work i always put a little bit of anti-seize on these header bolts because um makes them easier to take on and off transmission belt housing bolts too i had those things so worn in that once i got them cracked with my finger i could just spin them out which i had to do often some of you may remember that i think these bolts bottomed out in the head these are the original header bolts from the stock engine and that thing these held the stock manifolds on from the factory i used them instead of the bolts that came with my cheap headers because these had bigger heads on them thought they'd be less likely to strip and then whenever i built the turbo setup i was like bolts they're good so they're still there so just out of principle i want to reuse these

Auto-generated from the video audio.